Head-electrifying device.



H. AUB.

HEAD BLEGTRIFYING DEVIGE.

APPLICATION FILED JULY 19, 1910.

999,945. Patented Aug. 8, 1911.

FIG. 1 F161. 2

HERMANN AUB, OF IlIUNICI-I, GERMANY.

HEAD-ELECTB'IFYING DEVICE.

To all whom it may concern:

Be it known that I, HERMANN AUB, citizen of Germany, residing at Munich,Bavaria, Germany, have invented certain new and useful Improvements inHead-Electrifying Devices; and I do hereby declare the following to be afull, clear, and exact description of the invention, such as will enableothers skilled in the art to which it appertains to make and use thesame.

Head electrifying devices are already known, in which the electrode orthe electrodeholder is so connected to the spring hoop-segment that theelectrode can be adjusted and moved to a certain extent relatively tothe hoop. In practice it has been found, however, that these electrodescannot always follow the movements of the muscles when eating, speakingor when nervous muscular contractions take place at the point of contactthis resulting in an irregular or interrupted flow of the current andcausing inconvenience to the patient, for instance, dancing lightsbefore the eyes and similar unpleasant symptoms. The present inventionremoves these disadvantages by making not only the hoop-segment ofelastic or sp-ringy material, for instance, inthe form of a springbuckle or clasp, adapted to inclose the head of the wearer, but also theconnection between the electrode and the electrode-holder; in thepresent invention the electrode is given a certain freedom of movementin all direct-ions, so that it can follow all movements of the musclesat the point of cont-act, without in any way interrupting the regularflow of the current.

Reference being had to the accompanying drawing, Figure 1 shows thepresent invention as applied to an ordinary head hoop, Fig. 2 being across-section; Fig. 3 is a sectional view of an electrode, Fig. ashowing the same in another position, and Fig. 5 being a view of anelectrode from below. Figs. 6 and 7 illustrate two ways of using thehoop and electrodes.

In Figs. 1 and 2 a is the hoop, serving as carrier for the electrodesand being composed preferably of springy material either itself aninsulator or covered with insulating material. Each electrode consistsof a carriage Z) slidably adjustable on the hoop (1, provided with aconnecting screw cl. Each carriage Z) is provided with an inwardlyprojecting socket 6, adapted to receive and hold Specification ofLetters Patent.

Application filed July 19, 1910.

Patented Aug. 8, r911.

Serial No. 572,697.

a pin 7, which is connected to the butt 72. of the electrode cushion 9through the medium of springs and is slidingly arranged in said butt.For this purpose the butt it is provided with a screw-collar 2', throughwhich the pin f protrudes. The latter has at its end a circular ridge 70(Fig. 3) so that it cannot be pulled out of the screw collar 2' and butth. The ridged end is of the pin f is pressed by a spring Z, which maypreferably be in the form of a coiled spring.

The pin f may advantageously be provided with a projection m, adapted torest against the under surface of the screw collar 2', as shown in Fig.3; in this position the pin 7 is not free to slide up and down in thecollar i and butt h, and may therefore be inserted in the socket c withgreater ease. /Vhen said pin f is in its place, the parts 9, 7L and kare turned until the projection m can enter the interior of the screwcollar 4' through the opening at, in this position the pin is again freeto slide up and down in said collar and butt h (Fig. i). The head A ofthe pin has a certain amount of lateral free play inside the collar 2',so that the cushion 9 can be moved not only up and down against thepressure of the spring Z, but also can swing slightly to the side. Inthis way a uniform pressure of the electrode cushion 9 against the headis secured, and said cushion is able to adapt itself to the movement ofthe muscles at the point of contact, for instance, when speaking,chewing, shaking the head, or the like; therefore the current will notbe interrupted and such unpleasant symptoms as dancing lights before theeyes and the like will be avoided, as has been proved by practicaltrials.

The pin f may be held in the socket 6 either by friction alone, or maybe arranged to screw into said socket. In the latter case Y a projection0 (Figs. 4c and 5) must be provided on the under surface of the collar2', which projection 0 is adapted to engage with the projection m of thepin f, thus enabling it to be screwed into the socket c. For the purposeof fixing the pin into the socket, whether it screws in or not, it issupposed that the cushion 9 will be used as a handle.

Figs. 6 and 7 show two methods of using the apparatus, but obviously itmay be adjusted in any other position found desirable or necessary, thisbeing facilitated by the adjustability of the electrode holders orcarriages Z) on the hoop a and by the elasticity of the latter. I

lVhat I claim as my invention and desire to secure by Letters Patent,is:

1. In a device of the character set forth the combination with aresilient band, of a supporting carriage slidable thereon, acushion-supporting-member, means whereby the latter is supported fromthe sliding carriage, a cushion arranged exteriorly of the free end ofthe cushion-supporting-ineinber, and a resilient "connection fromthecushion to the means for supporting the cushionsu-pporting-member fromthe sliding carriage, substantially as described.

2. In a device ofthe character set forth, the combination with aresilient band, of a supporting carri'age 's'lid'able thereon, a pincarried by said supporting carriage, a cushion-supporting-member carried'by said pin, a cushion on the free extremity of saidcushion-suppciting-member and arranged exteriorly thereof, and aresilient connection passing from the pin through thecushionsupporting-member to the cushion, whereby the latter is capableof universal movement. substantially as described.

3. In a device of the character set forth, the combination with aresilient band, of a supporting carriage slidable thereon and beingprovided with a socket, a pin having one end adapted to enter saidsocket and its opposite end provided with an enlarged head, a collarwithin which the headed end of the pin is movable, anelectrode having ahollow member telescoping with said collar and a cushion on the freeextremity of said hollow member, and a resilient connection from theheaded pin to the cushion whereby the latter is capable of universalmovement,

substantially as described.

4. In a. device of the character set forth, the combination with aresilient band, of a supporting carriage slidable thereon and beingprovided with a socket, a pin having one end adapted to enter saidsocket and its opposite end provided with an enlarged head, a lateralprojection formed on said pin in proximity to the headed end thereof, acollar having a lateral slot for the admission of said projection andsaid collar being designed to receive the headed end of said pin, anelectrode having a hollow member telescoping with and adjustablerelatively to said hollow member and a cushion on the free extremity ofthe latter and a spring extending from the headed pin to the cushionwhereby the latter is capable of universal movement, substantially asdescribed.

5. In a device of the character set forth, the combination with aresilient band, of a supporting carriage slidable thereon, and beingprovided with a socket, a pin having one end adapted to enter saidsocket and its opposite end provided with an enlarged head, a lateralprojection formed on said pin, a cush'ion-su'pporting-member having itslower end provided with a lateral slot and a downwardly projecting pinadapted to engage the lateral projection on the headed pin, a cushionarranged exteriorly on the free extremity of saidcushion-supporting-member, and a spring connecting the headed pin to thecushion whereby the latter is capable of universal movement,substantially as described. a

In testimony whereof I hereto athx my signature in the presence of twowitnesses.

I-IERMANN AUB. [It s] IVitnesses:

Hans P. RoBnnr, LEMP RICHARDS.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents,

Washington, D. G."

